e-ILV

The e-ILV provides free access to all the terms and definitions contained in the international standard CIE S 017:2020 ILV: International Lighting Vocabulary, 2nd edition.

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For the complete set of terms and definitions CIE S 017:2020 can be purchased from the CIE Webshop. Members of a CIE National Committee or Associate National Committee have access to a 66,7 % discount on the purchase price of the standard.

17-27-078

centre beam intensity

I_c

value of the luminous intensity measured on the optical beam axis

Note 1 to entry: The centre beam intensity is expressed in candela (cd).

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Publication date: 2020-12
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